bf267febfbb3c9e56d210288d9bc6aced78c7dc28f4a5471acf307e8b5f03675

General

Target

d9e05f78d8fc6775ff208aa8925f97f3_JaffaCakes118.exe
Size

132KB
MD5

d9e05f78d8fc6775ff208aa8925f97f3
SHA1

8072f299b17ce6273ac16077850262241e16e41a
SHA256

bf267febfbb3c9e56d210288d9bc6aced78c7dc28f4a5471acf307e8b5f03675
SHA512

9a270e72b2f56621fe6ea97fbf27c56dac79ac22841bacaa5b7082927135ae36fa0bafee948b62d6c339b0ec94c07469708865f0b9e73defef6f685755b82227
SSDEEP

3072:GDqSgEjQPpQ1FpJYdYFOvOdYuGLj/7Ij:GNv4YpSdYBkb

Score

10^/10

discovery evasion persistence upx

Malware Config

Signatures

Modifies firewall policy service 3 TTPs 4 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Users\Admin\AppData\Roaming\Firewall SysScan\cfmmon.exe = "C:\\Users\\Admin\\AppData\\Roaming\\Firewall SysScan\\cfmmon.exe"	d9e05f78d8fc6775ff208aa8925f97f3_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	d9e05f78d8fc6775ff208aa8925f97f3_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	d9e05f78d8fc6775ff208aa8925f97f3_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	d9e05f78d8fc6775ff208aa8925f97f3_JaffaCakes118.exe

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation	d9e05f78d8fc6775ff208aa8925f97f3_JaffaCakes118.exe
Key value queried	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation	cfmmon.exe

Executes dropped EXE 2 IoCs

pid	Process
2272	cfmmon.exe
4368	cfmmon.exe

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/1860-24-0x0000000000400000-0x0000000000428000-memory.dmp	upx
behavioral2/memory/1860-27-0x0000000000400000-0x0000000000428000-memory.dmp	upx
behavioral2/memory/1860-26-0x0000000000400000-0x0000000000428000-memory.dmp	upx
behavioral2/memory/1860-32-0x0000000000400000-0x0000000000428000-memory.dmp	upx
behavioral2/memory/4368-55-0x0000000000400000-0x0000000000428000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cfmmon.exe = "C:\\Users\\Admin\\AppData\\Roaming\\Firewall SysScan\\cfmmon.exe"	d9e05f78d8fc6775ff208aa8925f97f3_JaffaCakes118.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 212 set thread context of 1860	212	d9e05f78d8fc6775ff208aa8925f97f3_JaffaCakes118.exe	87
PID 2272 set thread context of 4368	2272	cfmmon.exe	91

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d9e05f78d8fc6775ff208aa8925f97f3_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d9e05f78d8fc6775ff208aa8925f97f3_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cfmmon.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
212	d9e05f78d8fc6775ff208aa8925f97f3_JaffaCakes118.exe
2272	cfmmon.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 212 wrote to memory of 1860	212	d9e05f78d8fc6775ff208aa8925f97f3_JaffaCakes118.exe	87
PID 212 wrote to memory of 1860	212	d9e05f78d8fc6775ff208aa8925f97f3_JaffaCakes118.exe	87
PID 212 wrote to memory of 1860	212	d9e05f78d8fc6775ff208aa8925f97f3_JaffaCakes118.exe	87
PID 212 wrote to memory of 1860	212	d9e05f78d8fc6775ff208aa8925f97f3_JaffaCakes118.exe	87
PID 212 wrote to memory of 1860	212	d9e05f78d8fc6775ff208aa8925f97f3_JaffaCakes118.exe	87
PID 212 wrote to memory of 1860	212	d9e05f78d8fc6775ff208aa8925f97f3_JaffaCakes118.exe	87
PID 212 wrote to memory of 1860	212	d9e05f78d8fc6775ff208aa8925f97f3_JaffaCakes118.exe	87
PID 212 wrote to memory of 1860	212	d9e05f78d8fc6775ff208aa8925f97f3_JaffaCakes118.exe	87
PID 1860 wrote to memory of 2272	1860	d9e05f78d8fc6775ff208aa8925f97f3_JaffaCakes118.exe	88
PID 1860 wrote to memory of 2272	1860	d9e05f78d8fc6775ff208aa8925f97f3_JaffaCakes118.exe	88
PID 1860 wrote to memory of 2272	1860	d9e05f78d8fc6775ff208aa8925f97f3_JaffaCakes118.exe	88
PID 2272 wrote to memory of 4368	2272	cfmmon.exe	91
PID 2272 wrote to memory of 4368	2272	cfmmon.exe	91
PID 2272 wrote to memory of 4368	2272	cfmmon.exe	91
PID 2272 wrote to memory of 4368	2272	cfmmon.exe	91
PID 2272 wrote to memory of 4368	2272	cfmmon.exe	91
PID 2272 wrote to memory of 4368	2272	cfmmon.exe	91
PID 2272 wrote to memory of 4368	2272	cfmmon.exe	91
PID 2272 wrote to memory of 4368	2272	cfmmon.exe	91

C:\Users\Admin\AppData\Local\Temp\d9e05f78d8fc6775ff208aa8925f97f3_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d9e05f78d8fc6775ff208aa8925f97f3_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:212
- C:\Users\Admin\AppData\Local\Temp\d9e05f78d8fc6775ff208aa8925f97f3_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\d9e05f78d8fc6775ff208aa8925f97f3_JaffaCakes118.exe"
  2⤵
  - Modifies firewall policy service
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1860
- - C:\Users\Admin\AppData\Roaming\Firewall SysScan\cfmmon.exe
    "C:\Users\Admin\AppData\Roaming\Firewall SysScan\cfmmon.exe" in
    3⤵
    - Checks computer location settings
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2272
  - - C:\Users\Admin\AppData\Roaming\Firewall SysScan\cfmmon.exe
      "C:\Users\Admin\AppData\Roaming\Firewall SysScan\cfmmon.exe"
      4⤵
      Executes dropped EXE
      PID:4368

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\240623359.exe

Filesize
316B

MD5
9c6ce68f3b8378b80021a70460f70b51

SHA1
663385ab1710fde3d4266061e29069150d7e2ed0

SHA256
a919b1b674d0682f0df3a4fb0e467823e17497ca758d9e3a1e2e204f40eb50c1

SHA512
691827b65996cf0764876e764dc086c222a07d350818a7f0627b193ca3ce19fddf410d9fd5d5813696fd591ec846484e48ad27e7e20589bafafa21aaf1d4f636

Download Submit
C:\Users\Admin\AppData\Roaming\Firewall SysScan\cfmmon.exe

Filesize
132KB

MD5
5a0c57c55b81fe7f942d3bc0026b176a

SHA1
6f9ec58bb08f91cbc01db9acd92a7504d9410b81

SHA256
5a333a7d9a938cd19dff1cc03c303bbdb5252821e7b87c84f1cec291a1d2b118

SHA512
daba5e22f9c4ee23a639417130e57418f4d55c6e52d38bdc3eff8d8a99ec08a2cdfd3fa8c1706ea8269de98e2b84ce3abe85b95e186d4ab4097180d9cda086f2

Download Submit
memory/212-16-0x00000000006F0000-0x00000000006F1000-memory.dmp

Filesize
4KB

Download
memory/212-20-0x00000000020E0000-0x00000000020E1000-memory.dmp

Filesize
4KB

Download
memory/212-6-0x0000000002D00000-0x0000000002D01000-memory.dmp

Filesize
4KB

Download
memory/212-4-0x00000000020E0000-0x00000000020E1000-memory.dmp

Filesize
4KB

Download
memory/212-2-0x00000000006F0000-0x00000000006F1000-memory.dmp

Filesize
4KB

Download
memory/212-17-0x00000000020A0000-0x00000000020A1000-memory.dmp

Filesize
4KB

Download
memory/212-18-0x00000000020B0000-0x00000000020B1000-memory.dmp

Filesize
4KB

Download
memory/212-3-0x00000000020B0000-0x00000000020B1000-memory.dmp

Filesize
4KB

Download
memory/212-23-0x0000000003080000-0x0000000003081000-memory.dmp

Filesize
4KB

Download
memory/212-21-0x0000000003060000-0x0000000003061000-memory.dmp

Filesize
4KB

Download
memory/212-5-0x00000000020F0000-0x00000000020F1000-memory.dmp

Filesize
4KB

Download
memory/212-22-0x0000000002D00000-0x0000000002D01000-memory.dmp

Filesize
4KB

Download
memory/212-19-0x00000000020C0000-0x00000000020C1000-memory.dmp

Filesize
4KB

Download
memory/1860-27-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/1860-26-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/1860-32-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/1860-24-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/2272-38-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2272-39-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2272-41-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2272-50-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2272-56-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4368-55-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads